
Originally Posted by
Midgardsormr
Your other questions were answered, but these weren't. The first issue--the end of your river jumping to the map border--is probably due to a snapping option. I don't recall off the top of my head where the snapping tool is, but if you poke around in the menus, you should be able to find a place to turn it off. Seems like it was close to or inside the grid settings.
The second problem was the line width of the river. That's quite easy to change. In the right-hand column on the left edge of the workspace there is a button called "change properties." If you right-click that button it will call up a context menu in which you can choose "line width."
Click that, choose the river, then enter a new value. The default value is probably 0.0, which will make the river a hairline no matter what zoom level you're at. Just choose a value that is equal to the width you want the river to be in real world units. Notice, though, that giving the river a width will give it a fill style, as if it were a polygon. I think the default is a solid fill with the same color as the original line, but I'm not sure.